# One Stroker — One-stroke drawing challenge

> One-stroke drawing challenge (iPhone/iPad app by Katsuaki Mabushi.)

- Source: https://appshunter.io/ios/app/one-stroker/id6774989670 (this page in markdown: same URL + `.md`)
- Developer: [Katsuaki Mabushi](https://appshunter.io/developer/1207137152)
- Category: Games, Education, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: English
- Released: 2026-06-02
- Data updated: 2026-07-26
- User reviews in markdown: https://appshunter.io/ios/app/one-stroker/id6774989670/reviews.md

## What is One Stroker?

One Stroker is a simple scoring app where you draw shapes in one stroke and receive a score based on beauty and accuracy.
Choose from circles, triangles, squares, stars, hexagons, and hearts, then draw the shape with your finger in one smooth stroke. When you lift your finger, your drawing is scored automatically.

The scoring system checks not only how similar your drawing looks, but also the features that make each shape recognizable. It evaluates straight lines, corner count, side balance, aspect ratio, star peaks and valleys, heart shape, and more.
After scoring, the correct neon shape appears over your drawing so you can intuitively see where your line matched and where it shifted.

Main features:
・ Draw shapes in one stroke
・ Score out of 100.0 with one decimal place
・ View shape-by-shape local records
・ Game Center leaderboards and achievements
・ Simple, modern neon-inspired design

A quick, simple, and surprisingly deep one-stroke challenge.
Draw a beautiful line and aim for a perfect 100.0.


## Version history (last 3 releases)

### 1.2 — 2026-07-24

Version 1.1 Update
○ Improved internal data handling
○ Updated the ranking display
　→ Scores are now shown separately for each shape.

### 1.1 — 2026-06-04

Version 1.1 Update
○ Added iPad support
○ Updated some text labels
○ Improved internal structure
○ Fixed minor bugs

### 1.0 — 2026-06-02

No release notes.

## More apps by Katsuaki Mabushi

- [Vocab Monsters](https://appshunter.io/ios/app/vocab-monsters/id1207137153)
- [Vocab Monsters Numbers](https://appshunter.io/ios/app/vocab-monsters-numbers/id1504444739)
- [ABC力検査](https://appshunter.io/ios/app/abc/id6791200806)

All apps by Katsuaki Mabushi: https://appshunter.io/developer/1207137152

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-26.*